Moving picture projector



NOV 20, 1934- J. D. s'nRlss MOVTNG PICTURE PROJECTOR Filed June 28. 19342 Sheets-Sheet l Jaco J D sTlRlss 1,981,829

MOVING PICTURE PROJECTOR Filed June 2s, 1954 2 sheets-sheet 2II---ll-llllll Nov., 20, 1934.

Patented Nov. 20, y1934 UNITED STATES MOVING PICTURE PROJEo'ron Jacob D.Stiriss, Cleveland, Ohio, assgnor to lDurable Toy and NoveltyCorporation, New

York, N. Y.

Application June 28, 1934,l Serial No. 732,932

8 Claims.

This invention relates to moving picture pro- Jectors and moreparticularly to toy projectors, the object of the invention being to soconstruct the device that intense heat from the lamp is eliminated and ashutter is provided to cause a gradual projection of the film objects,or its gradual fading. j

Further objects of the invention consist of a novel means for windingand rewinding the lm, the mounting of the lenses, the mounting of thelamp socket, the cooling of the housing, and the simple'arrangeinent ofthe device, all of which are more fully described in the followinglspecication, set forth in the appended claimsand illustrated in theaccompanying drawings,

wherein:

Figure 1 is a side elevation of the improved projector.

Fig.v 2 is a vertical longitudinal sectional view of the same.

' Fig. 3 is a perspective view of the telescopic lens section of one ofthe projecting tubes.

Fig. 4 is a perspective view of the lens holding cap shown as about tobe fitted on the lens section.

Fig. 5 is a transverse sectional view of the projector looking forward.Fig. 6 is a perspective view of the detached shutter and reel operatingmechanism.

Fig. 7 is a perspective view of the shutter detached. Fig. 8 is aperspective view of part of the winding reel with its ratchet wheeldetached.

Fig. 9 is a perspective view of the lamp socket and its attaching meansand about to be secured together.

Fig. 10 is an elevation of the lower end of the winding reel.

Fig. 11 is a detail view of the attaching means for the lamp box to thedoor.

The present invention is an improvement on patents issued to applicantJune 19th, 1934 for Moving picture projectors and Numbered 1,963,

-454 and 1,963,455, and where it is intended to simplify theconstruction ofthe projector and to increase the facilities for coolingthe housing and the lamp carrying box.

For this purposethe housing 15 has ventilating openings 16 in its top tocarry oir the heated air and from its bottom tongues 17 are punched,

5o -leaving openings 18 through which fresh air may enter and passaround the lamp box 19 and out of the openings 16, thus tending to keepthe housing `15 at a temperature that will notburn the hands of theoperator. v

. The end 'door 20 of the housing is slotted and its central portionpressed outward leaving openings 21 at its sides for the circulation ofthe air and the knob 22 answers the double purpose of manipulating thedoor but providing a non-conductive entrance for the electric Wiring forthe lamp 23.

The door 20 has an inner partition 23 which abuts against the end of thelamp box and as will be more clearly seen in Fig. l1 this partition hastongues 24 that are iitted into loops 25 in the flanges of the door 20.This lamp box has the top and side walls 26 and 27, andalso lthe bottom29, with slots 30 into which enter the tongues 17 of the housing whenthe parts are assembled. The lamp box has no front end but permits ofthe exit of the light from lamp 23' at that side. Y

The partition 23 has a central depression 31, as in' Fig. 9, with a slot32 at one side and an OpenV ing or slot 32 with flanges 33 atits sides.The lamp socket 34 carries on its end a cross bar 35 by which it isattached to the door by the insertion of one end in the slot 32 andpressing the bars other end in between the ilanges 33 which are springsand frictionally hold the bar with the socket on the partition.

To the front wall 36 of the housing is secured the projecting tubes 37and 38 provided at their outer ends with the lens carrying telescopicsections 39 and 40, their front ends 41 being flexible and adapted toengage the edges of the lens 42. 0n the outer end of each section 39 and40 is fitted a cap 43 having an openinginto which flts the lens and bywhich means each lens is held in its respective section.

The tubes are deflected towards a common center and near their innerends carry a polygonal shaft 44 that supports the shutters 45 and 46that are so located as to alternately shut oi the light passing throughthe iilm at the back of the wall 36 from the tubes and lenses.

The shaft 44 carries at one endl the depending arm 47 adapted to bevswung so that the shutters are thrown up and down to perform theirfuncticns. Connected with the arm 47 is a rod 48 that is actuated by acrank arm 49 within the housing and that is on a shaft journalled in oneside of the housing and having a handle 50 to rotate it from theoutside.

On a horizontal bend 51 of the rod 48 is journalled a pawl 52 made up ofparallel members that embrace a ratchet wheel 53 and has at its outerend a blade 54 that engages the teeth of kthe said ratchet wheel, beingforced into engagement by means of a spring 55 that presses against therod. These parts are so adjusted that at the end of the forwardmovement, the blade 54 is out of engagement with the ratchet wheel andin this position, the nlm may be rewound.

, When the handle 50 is rotated the bar 48 with 4the pawl is caused toreciprocate'and the ratchet wheel 53 on the shaft of the spool or reel56 is intermittently rotated and the film is drawn across openings inthe front wall 36 and wound on said reel.

A t the side of the housing opposite the reel 56 is another reel 5'?which originally carries the nlm and from which the action. abovedescribed unwinds it, but when the whole nlm has been displayed it isrewound on the reel 57 by means of a crank arm 58.

The angles of projection of the tubes 37 and 38 may be altered byadjusting the lips 59 and 'G held together by the screw 61.

In order to initially carry the nlm from one reel to the other a slide61 having a spur or hook to engage the film is located at the front wall36, and to prevent back action of the reel 56 a spider spring 62 islocated between the ratchet 53 and the bracket 63. j

It will be observed in Figs. 2 and 5 that the lamp box and the housingare separated so that a space is left between them for the circulationof air to keep the housing cool, at the same time the iight iscompletely conned 'and admitted onlyy to the projector tubes.

It is obvious that the parts may be otherwise arranged and modifiedwithout departing from the essential features above described or fromthe scope of the appended claims.

What I claim as new is:

i. In moving picture projectors, the combi nation of a housing havingVentilating openings in its bottom and top, a closure at one end andhaving ventilating openings, a lamp box carried by the housing,projection tubes, and swinging shutters in said tubes.

2. In moving picture projectors, the combination of a housing havingventilating openings, a closure at one end and having Ventilatingopenings, a partition within theclosure, a lamp socket removably securedtothe partition, and a lamp box carried by the housing and abuttingagainstthe partition. y

3. In moving picture projectors, the combination of a housing havingVentilating openings in its top and bottom, tongues on the bottom:mareas of the housing, an end closure for the housing, an interiorpartition in the closure, and having slots, a lamp socket having a crossbar to t in the slots, and a lamp box having slots to receive thetongues of the housing.

d. In moving picture projectors, the combination of a housing havingtongues punched from .its bottom and Ventilating openings in its top, aventilated closure and adapted to be tted in the end of the housing, apartition within the closure and having slots, a lamp socket having across bar adapted to be held in the slots, and a front Wall havingopenings and carrying projection tubes.

5. In moving picture projectors, the combination of a housing adapted tocontain a lamp and havingppenings in its front wall, projection tubes atsaid openings, a lateral shaftl 'between the said tubes, shutterscarried by said shaft and each adapted to swing 'in a tube andalternately open and close same to the light rays from the lamp, andmeans for actuating the1 shutters.

6. In moving picture projectors, the combination of a housing having afront Wall with openings, projection tubes at said openings, film reelsat the sides of the said tubes, a ratchet wheel on the axis of one ofthe reels, uctuating shutters in said tubes and means for simultaneouslyactuating the shutters and rotating the said ratchet wheel.

7. In moving picture projectors, the eornbination of a housing havingopenings in its front wail, projection tubes at said openings, means foradjusting the angle of said tubes, a lateral shaft between the tubes, auctuating shutter for each tube and carried by the lateral shaft, nimreels at each side of the tubes, a ratchet wheel on one of the reels, areciprocating pawl for the ratchet wheel., a rod adapted to actuate theshutters and the pawl, and a crank arm operating the rod.

n. In moving picture projectors, the combination of a housing havingopenings in its iront end, projection tubes at each opening and adaptedto be adjusted, film reels at each side of the tubes, a crank arm on oneof the reels, a ratchet wheel on the other reel, means for. drawing anlm from one reel to the other, a friction spring on the reel with theratchet wheel, and a pewl adapted to actuate said ratchet wheei.

JAQUE D. STEJSS.

ros I

